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11 terms

Ch. 11 Vocabulary

Equations & Inequalities
STUDY
PLAY
Boundary line
The set of points where the two sides of a two-variable linear inequality are equal.
Slope
A measure of the steepness of a line on a graph, the rise divided by the run.
Constant of proportionality
A constant ratio of two variables related proportionally.
Direct variation
A relationship between two variable in which the data increase or decrease together at a constant rate.
Linear equation
An equation whose solutions form a straight line on a coordinate plane.
Linear inequality
A mathematical sequence using < >≤≥ whose graph is a region with a straight line boundary.
Standard form
A way to write numbers by using digits.
Point slope form
The equation of a line in the form of Y_2-Y_1=m(X_2-X_1) where m is the slope and (X_(1,),Y_1) is a specific point on the line.
Slope intercept form
A linear equation written in the form y=mx+b, where m represents slope, and b represents the y-intercept.
X-intercept
The x-coordinate of the point where the graph of a line crosses the x-axis.
Y-intercept
The y-coordinate of the point where the graph of a line crosses the y-axis.